Sigma Serial Numbers Lens

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But do you know when these changes were made? My copy must be fairly early and I've had no problems. I bought it for my a100 and it was a used item, not new.

I can't remember when I bought it, but as I used it on my a580 I bought in 2010, it was at least over a year before then. When was it released? 2007 with the a700? I'm work at the moment, but I can P.M the serial number of mine. If the numbers run in any logical sequence, you might be able to work out if it's older or newer than mine. Mine had some hammer over the years, so if the numbers similar or later, you can guess it's a later version and strong enough for plenty if use.

Kilkry wrote: There was that fungus range of serial# too, though if one of those and affected it may be that it should have manifested by now. 'The lens coating will looks like snowflake. The reported incident serial number are starting in the range 384xxxxx~387xxxxx.' ' - as per an earlier thread, Well to carry on from my earlier post the serial number of mine is 38409**. Nice and sturdy, no problem with the gears and despite being within the above serial numbers for toadstools AND being used many times in the rain, moving from outdoor frozen conditions to hot centrally heated environment's in the winter, all the glass is still fungus free Just to add, had a quick look on Flickr, and it seems that I was using this lens from about mid 2008. I bought it used, so I would say that mine must have been made fairly early.

Feb 14, 2007  Mine has a serial number 3811***, so it looks like it is from a later date. I will stop worrying and start enjoying this nice lens. BTW, there is also some strange number on the front side of the lens, in my case an 8 digit number.

Never had a problem. Bit che serial. Edited by neilt3 - 25 August 2015 at 23:59.